/**
* Add custom data to index document (you can override to add custom fields
* to the search index)
*
* @param HasNodeInterface $page
* @param array $doc
*/
protected function addCustomData(HasNodeInterface $page, &$doc)
{
$event = new IndexNodeEvent($page, $doc);
$this->container->get('event_dispatcher')->dispatch(IndexNodeEvent::EVENT_INDEX_NODE, $event);
$doc = $event->doc;
if ($page instanceof HasCustomSearchDataInterface) {
$doc += $page->getCustomSearchData($doc);
}
}
